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-rw-r--r--include/volt/volt_dev.c609
1 files changed, 609 insertions, 0 deletions
diff --git a/include/volt/volt_dev.c b/include/volt/volt_dev.c
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1/*
2 * Copyright (c) 2016-2018, NVIDIA CORPORATION. All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
20 * DEALINGS IN THE SOFTWARE.
21 */
22
23#include <nvgpu/types.h>
24#include <nvgpu/sort.h>
25#include <nvgpu/pmuif/nvgpu_gpmu_cmdif.h>
26#include <nvgpu/bios.h>
27#include <nvgpu/kmem.h>
28#include <nvgpu/gk20a.h>
29
30#include "gp106/bios_gp106.h"
31
32#include "boardobj/boardobjgrp.h"
33#include "boardobj/boardobjgrp_e32.h"
34#include "ctrl/ctrlvolt.h"
35
36#include "volt.h"
37
38#define VOLT_DEV_PWM_VOLTAGE_STEPS_INVALID 0U
39#define VOLT_DEV_PWM_VOLTAGE_STEPS_DEFAULT 1U
40
41static int volt_device_pmu_data_init_super(struct gk20a *g,
42 struct boardobj *pboard_obj, struct nv_pmu_boardobj *ppmudata)
43{
44 int status;
45 struct voltage_device *pdev;
46 struct nv_pmu_volt_volt_device_boardobj_set *pset;
47
48 status = boardobj_pmudatainit_super(g, pboard_obj, ppmudata);
49 if (status) {
50 return status;
51 }
52
53 pdev = (struct voltage_device *)pboard_obj;
54 pset = (struct nv_pmu_volt_volt_device_boardobj_set *)ppmudata;
55
56 pset->switch_delay_us = pdev->switch_delay_us;
57 pset->voltage_min_uv = pdev->voltage_min_uv;
58 pset->voltage_max_uv = pdev->voltage_max_uv;
59 pset->volt_step_uv = pdev->volt_step_uv;
60
61 return status;
62}
63
64static int volt_device_pmu_data_init_pwm(struct gk20a *g,
65 struct boardobj *pboard_obj, struct nv_pmu_boardobj *ppmudata)
66{
67 int status = 0;
68 struct voltage_device_pwm *pdev;
69 struct nv_pmu_volt_volt_device_pwm_boardobj_set *pset;
70
71 status = volt_device_pmu_data_init_super(g, pboard_obj, ppmudata);
72 if (status) {
73 return status;
74 }
75
76 pdev = (struct voltage_device_pwm *)pboard_obj;
77 pset = (struct nv_pmu_volt_volt_device_pwm_boardobj_set *)ppmudata;
78
79 pset->raw_period = pdev->raw_period;
80 pset->voltage_base_uv = pdev->voltage_base_uv;
81 pset->voltage_offset_scale_uv = pdev->voltage_offset_scale_uv;
82 pset->pwm_source = pdev->source;
83
84 return status;
85}
86
87static int construct_volt_device(struct gk20a *g,
88 struct boardobj **ppboardobj, u16 size, void *pargs)
89{
90 struct voltage_device *ptmp_dev = (struct voltage_device *)pargs;
91 struct voltage_device *pvolt_dev = NULL;
92 int status = 0;
93
94 status = boardobj_construct_super(g, ppboardobj, size, pargs);
95 if (status) {
96 return status;
97 }
98
99 pvolt_dev = (struct voltage_device *)*ppboardobj;
100
101 pvolt_dev->volt_domain = ptmp_dev->volt_domain;
102 pvolt_dev->i2c_dev_idx = ptmp_dev->i2c_dev_idx;
103 pvolt_dev->switch_delay_us = ptmp_dev->switch_delay_us;
104 pvolt_dev->rsvd_0 = VOLTAGE_DESCRIPTOR_TABLE_ENTRY_INVALID;
105 pvolt_dev->rsvd_1 =
106 VOLTAGE_DESCRIPTOR_TABLE_ENTRY_INVALID;
107 pvolt_dev->operation_type = ptmp_dev->operation_type;
108 pvolt_dev->voltage_min_uv = ptmp_dev->voltage_min_uv;
109 pvolt_dev->voltage_max_uv = ptmp_dev->voltage_max_uv;
110
111 pvolt_dev->super.pmudatainit = volt_device_pmu_data_init_super;
112
113 return status;
114}
115
116static int construct_pwm_volt_device(struct gk20a *g,
117 struct boardobj **ppboardobj,
118 u16 size, void *pargs)
119{
120 struct boardobj *pboard_obj = NULL;
121 struct voltage_device_pwm *ptmp_dev =
122 (struct voltage_device_pwm *)pargs;
123 struct voltage_device_pwm *pdev = NULL;
124 int status = 0;
125
126 status = construct_volt_device(g, ppboardobj, size, pargs);
127 if (status) {
128 return status;
129 }
130
131 pboard_obj = (*ppboardobj);
132 pdev = (struct voltage_device_pwm *)*ppboardobj;
133
134 pboard_obj->pmudatainit = volt_device_pmu_data_init_pwm;
135
136 /* Set VOLTAGE_DEVICE_PWM-specific parameters */
137 pdev->voltage_base_uv = ptmp_dev->voltage_base_uv;
138 pdev->voltage_offset_scale_uv = ptmp_dev->voltage_offset_scale_uv;
139 pdev->source = ptmp_dev->source;
140 pdev->raw_period = ptmp_dev->raw_period;
141
142 return status;
143}
144
145
146static struct voltage_device_entry *volt_dev_construct_dev_entry_pwm(
147 struct gk20a *g,
148 u32 voltage_uv, void *pargs)
149{
150 struct voltage_device_pwm_entry *pentry = NULL;
151 struct voltage_device_pwm_entry *ptmp_entry =
152 (struct voltage_device_pwm_entry *)pargs;
153
154 pentry = nvgpu_kzalloc(g, sizeof(struct voltage_device_pwm_entry));
155 if (pentry == NULL) {
156 return NULL;
157 }
158
159 memset(pentry, 0, sizeof(struct voltage_device_pwm_entry));
160
161 pentry->super.voltage_uv = voltage_uv;
162 pentry->duty_cycle = ptmp_entry->duty_cycle;
163
164 return (struct voltage_device_entry *)pentry;
165}
166
167static u8 volt_dev_operation_type_convert(u8 vbios_type)
168{
169 switch (vbios_type) {
170 case NV_VBIOS_VDT_1X_ENTRY_PARAM1_PSV_OPERATION_TYPE_DEFAULT:
171 return CTRL_VOLT_DEVICE_OPERATION_TYPE_DEFAULT;
172
173 case NV_VBIOS_VDT_1X_ENTRY_PARAM1_PSV_OPERATION_TYPE_LPWR_STEADY_STATE:
174 return CTRL_VOLT_DEVICE_OPERATION_TYPE_LPWR_STEADY_STATE;
175
176 case NV_VBIOS_VDT_1X_ENTRY_PARAM1_PSV_OPERATION_TYPE_LPWR_SLEEP_STATE:
177 return CTRL_VOLT_DEVICE_OPERATION_TYPE_LPWR_SLEEP_STATE;
178 }
179
180 return CTRL_VOLT_DEVICE_OPERATION_TYPE_INVALID;
181}
182
183static struct voltage_device *volt_volt_device_construct(struct gk20a *g,
184 void *pargs)
185{
186 struct boardobj *pboard_obj = NULL;
187
188 if (BOARDOBJ_GET_TYPE(pargs) == CTRL_VOLT_DEVICE_TYPE_PWM) {
189 int status = construct_pwm_volt_device(g, &pboard_obj,
190 sizeof(struct voltage_device_pwm), pargs);
191 if (status) {
192 nvgpu_err(g,
193 " Could not allocate memory for VOLTAGE_DEVICE type (%x).",
194 BOARDOBJ_GET_TYPE(pargs));
195 pboard_obj = NULL;
196 }
197 }
198
199 return (struct voltage_device *)pboard_obj;
200}
201
202static int volt_get_voltage_device_table_1x_psv(struct gk20a *g,
203 struct vbios_voltage_device_table_1x_entry *p_bios_entry,
204 struct voltage_device_metadata *p_Volt_Device_Meta_Data,
205 u8 entry_Idx)
206{
207 int status = 0;
208 u32 entry_cnt = 0;
209 struct voltage_device *pvolt_dev = NULL;
210 struct voltage_device_pwm *pvolt_dev_pwm = NULL;
211 struct voltage_device_pwm *ptmp_dev = NULL;
212 u32 duty_cycle;
213 u32 frequency_hz;
214 u32 voltage_uv;
215 u8 ext_dev_idx;
216 u8 steps;
217 u8 volt_domain = 0;
218 struct voltage_device_pwm_entry pwm_entry = { { 0 } };
219
220 ptmp_dev = nvgpu_kzalloc(g, sizeof(struct voltage_device_pwm));
221 if (ptmp_dev == NULL) {
222 return -ENOMEM;
223 }
224
225 frequency_hz = (u32)BIOS_GET_FIELD(p_bios_entry->param0,